genethliacus, a, um, adj., = γενεθλιακός, of or belonging to one's natal hour or nativity, genethliacal. adj.: ratio, the art of calculating nativities, Arn. 2, 116; cf. in the foll.

— Subst. gene-thliacus, i, m., a calculator of nativities, Gell. 14, 1, 1.

— genethliace, ēs, f., the art of calculating nativities, genethliacs, Mart. Cap. 3, § 228; 9, § 894.

— Gene-thliacon, i, n., a birth-day poem, the title of a poem by Statius, Stat. S. 2, 7.